well VAR looked in order at the offside (clearly none), then the Guehi movement - this was deemed not a foul as he was just being stronger, after all it is a contact sport.
Then finally at the 3rd attempt the 1 yard law was mentioned, to the surprise of almost everyone. That is why VAR took so long.
I do remember the 1 yard law being introduced, however, this seemed to be more about the attacking team standing in front of the wall (so a wall in front of the wall).
As has been said i don't think this 1 yard 'law' has ever been applied before. That for me is the disappointment, players and supporters just want consistency.
Then later with the MG header (very similar to the Newcastle penalty last season) VAR seemed to dismiss it within seconds.
As Mica Richard said at half time VAR seems to be anti goals.